Backlog API

backlog-api.php

<?php
namespace Backlog;

use GuzzleHttp\Client;

class XmlRpcSample
{

    protected $url;
    protected $user;
    protected $password;

    public function __construct($url, $user, $password)
    {
        $this->url      = $url;
        $this->user     = $user;
        $this->password = $password;
    }

    public function send($method, $params = [])
    {
        $body     = xmlrpc_encode_request($method, $params);
        $response = (new Client)->post($this->url, [
            'body' => $body,
            'auth' => [$this->user, $this->password]
        ]);
        return $response->xml();
    }
}

require_once '../vendor/autoload.php';
$api = new \Backlog\XmlRpcSample('https://demo.backlog.jp/XML-RPC', 'demo', 'demo');
$res = $api->send('getProjects');

var_dump($res);